<template>
  <ContentWrap>
    <!-- 搜索工作栏 -->
    <el-form
      class="-mb-15px"
      :model="queryParams"
      ref="queryFormRef"
      :inline="true"
      label-width="68px"
    >
      <el-form-item label="" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入流程名称"
          clearable
          @keyup.enter="handleQuery"
          class="!w-240px"
        />
      </el-form-item>

      <el-form-item>
        <el-button @click="handleQuery">
          <Icon icon="ep:search" class="mr-5px" />
          搜索
        </el-button>
        <el-button @click="resetQuery">
          <Icon icon="ep:refresh" class="mr-5px" />
          重置
        </el-button>
      </el-form-item>

      <el-form-item label="" prop="category" class="absolute right-[300px]">
        <el-select
          v-model="queryParams.category"
          placeholder="请选择流程分类"
          clearable
          class="!w-155px"
          @change="handleQuery"
        >
          <el-option
            v-for="category in categoryList"
            :key="category.code"
            :label="category.name"
            :value="category.code"
          />
        </el-select>
      </el-form-item>

      <el-form-item label="" prop="status" class="absolute right-[130px]">
        <el-select
          v-model="queryParams.status"
          placeholder="请选择流程状态"
          clearable
          class="!w-155px"
          @change="handleQuery"
        >
          <el-option
            v-for="dict in bpm_process_instance_status"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>

      <!-- 高级筛选 -->
      <el-form-item class="absolute right-0">
        <el-popover
          :visible="showPopover"
          persistent
          :width="400"
          :show-arrow="false"
          placement="bottom-end"
        >
          <template #reference>
            <el-button @click="showPopover = !showPopover">
              <Icon icon="ep:plus" class="mr-5px" />
              高级筛选
            </el-button>
          </template>
          <el-form-item
            label="所属流程"
            class="font-bold"
            label-position="top"
            prop="processDefinitionKey"
          >
            <el-select
              v-model="queryParams.processDefinitionKey"
              placeholder="请选择流程定义"
              filterable
              clearable
              class="!w-390px"
              @change="handleQuery"
            >
              <el-option
                v-for="item in processDefinitionList"
                :key="item.key"
                :label="item.name"
                :value="item.key"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="发起时间" class="font-bold" label-position="top" prop="startTime">
            <el-date-picker
              v-model="queryParams.startTime"
              value-format="YYYY-MM-DD HH:mm:ss"
              type="daterange"
              start-placeholder="开始日期"
              end-placeholder="结束日期"
              :default-time="[new Date('1 00:00:00'), new Date('1 23:59:59')]"
              class="!w-240px"
            />
          </el-form-item>
          <el-form-item class="font-bold" label-position="top">
            <div class="flex justify-end w-full">
              <el-button @click="resetQuery">清空</el-button>
              <el-button @click="showPopover = false">关闭</el-button>
              <el-button type="primary" @click="handleQuery">确认</el-button>
            </div>
          </el-form-item>
        </el-popover>
      </el-form-item>
    </el-form>
  </ContentWrap>

  <!-- 列表 -->
  <ContentWrap>
    <el-table v-loading="listLoading" :data="list" :show-overflow-tooltip="true">
      <el-table-column label="流程名称" prop="name" min-width="150" fixed="left" />
      <el-table-column label="摘要" prop="summary" width="340" fixed="left">
        <template #default="scope">
          <div class="flex flex-col" v-if="scope.row.summary && scope.row.summary.length > 0">
            <div v-for="(item, index) in scope.row.summary" :key="index">
              <el-text type="info"> {{ item.key }} : {{ item.value }}</el-text>
            </div>
          </div>
        </template>
      </el-table-column>
      <el-table-column label="流程分类" prop="categoryName" min-width="90" fixed="left" />
      <el-table-column label="流程状态" prop="status" min-width="260">
        <template #default="scope">
          <!-- 审批中状态 -->
          <template
            v-if="
              scope.row.status === BpmProcessInstanceStatusEnum.RUNNING &&
              scope.row.taskActivities?.length > 0
            "
          >
            <div>
              <div v-for="idx in Math.min(3, scope.row.taskActivities.length)" :key="idx">
                <el-button link type="primary" @click="handleDetail(scope.row)">
                  {{ scope.row.taskActivities[idx-1].assigneeUser?.nickname }}
                </el-button>
                <template v-if="scope.row.taskActivities[idx-1].instanceCount > 1">
                  <template v-if="scope.row.taskActivities[idx-1].assigneeUser">等</template>
                  {{ scope.row.taskActivities[idx-1].instanceCount }} 人
                </template>
                ({{ scope.row.taskActivities[idx-1].name }}) 审批中
              </div>
              <div v-if="scope.row.taskActivities.length > 3">
                另有 {{ scope.row.taskActivities.length - 3 }} 个任务
              </div>
            </div>
<!--            &lt;!&ndash; 单任务节点审批 &ndash;&gt;-->
<!--            <template v-if="scope.row.taskActivities.length === 1">-->
<!--              <span>-->
<!--                <el-button link type="primary" @click="handleDetail(scope.row)">-->
<!--                  {{ scope.row.taskActivities[0].assigneeUser?.nickname }}-->
<!--                </el-button>-->
<!--                <template v-if="scope.row.taskActivities[0].instanceCount > 1">-->
<!--                  <template v-if="scope.row.taskActivities[0].assigneeUser">等</template>-->
<!--                  {{ scope.row.taskActivities[0].instanceCount }} 人-->
<!--                </template>-->
<!--                ({{ scope.row.taskActivities[0].name }}) 审批中-->
<!--              </span>-->
<!--            </template>-->
<!--            &lt;!&ndash; 多任务节点审批 &ndash;&gt;-->
<!--            <template v-else>-->
<!--              <span>-->
<!--                <el-button link type="primary" @click="handleDetail(scope.row)">-->
<!--                  {{ scope.row.tasks[0].assigneeUser?.nickname }}-->
<!--                </el-button>-->
<!--                等 {{ scope.row.tasks.length }} 人 ({{ scope.row.tasks[0].name }})审批中-->
<!--              </span>-->
<!--            </template>-->
          </template>
          <!-- 非审批中状态 -->
          <template v-else>
            <dict-tag :options="bpm_process_instance_status" :value="scope.row.status" />
          </template>
        </template>
      </el-table-column>
      <el-table-column label="发起时间" prop="startTime" width="180" />
      <el-table-column label="结束时间" prop="endTime" width="180" />
      <el-table-column label="流程编号" prop="id" min-width="300px" />
      <el-table-column label="操作" fixed="right" width="140">
        <template #default="scope">
          <el-button
            link
            type="primary"
            v-hasPermi="['bpm:process-instance:query']"
            @click="handleDetail(scope.row)"
          >
            详情
          </el-button>
          <el-button
            link
            type="primary"
            v-if="scope.row.status === BpmProcessInstanceStatusEnum.RUNNING"
            v-hasPermi="['bpm:process-instance:cancel']"
            @click="handleCancel(scope.row)"
          >
            取消
          </el-button>
          <el-button
            link
            type="primary"
            v-else
            v-hasPermi="['bpm:process-instance:create']"
            @click="handleReCreate(scope.row)"
          >
            重新发起
          </el-button>
        </template>
      </el-table-column>
    </el-table>
  </ContentWrap>
</template>

<script setup lang="ts">
import { ProcessInstanceApi, ProcessInstanceVO } from '@/api/bpm/process_instance'
import { CategoryApi, CategoryVO } from '@/api/bpm/category'
import { ProcessDefinitionApi } from '@/api/bpm/process_definition'
import {
  BpmModelFormTypeEnum,
  BpmProcessInstanceStatusEnum,
  EnableStatusEnum
} from '@/utils/constants'
import { DICT_TYPE } from '@/utils/dict'
import { ElMessageBox } from 'element-plus'

defineOptions({ name: 'BpmProcessInstanceMy' })

const router = useRouter() // 路由
const route = useRoute()
const message = useMessage() // 消息弹窗
const { t } = useI18n() // 国际化

const { bpm_process_instance_status } = useIntDict(DICT_TYPE.bpm_process_instance_status)

const listLoading = ref(true) // 列表的加载中状态
const list = ref<ProcessInstanceVO[]>([]) // 列表的数据
const total = ref(0) // 列表的总页数
const queryParams = reactive({
  name: undefined,
  processDefinitionKey: undefined,
  category: undefined,
  status: undefined,
  startTime: [],
  pageNo: 1,
  pageSize: 10
})
const queryFormRef = ref() // 搜索的表单
const categoryList = ref<CategoryVO[]>([])
const processDefinitionList = ref<any[]>([]) // 流程定义列表
const showPopover = ref(false)

/** 查询列表 */
const getList = async () => {
  listLoading.value = true
  try {
    const data = await ProcessInstanceApi.getProcessInstanceMyPage(queryParams)
    list.value = data.content
    total.value = data.totalElement
    if (list.value?.length) {
      list.value.forEach((item) => {
        item.taskActivities = getTaskActivities(item)
      })
    }
  } finally {
    listLoading.value = false
  }
}

const getTaskActivities = (row: ProcessInstanceVO) => {
  if (!row.activities?.length) {
    return []
  }
  return row.activities.filter((item) => {
    return item.type === 'userTask'
  })
}

/** 搜索按钮操作 */
const handleQuery = () => {
  queryParams.pageNo = 1
  getList()
}

/** 重置按钮操作 */
const resetQuery = () => {
  queryFormRef.value.resetFields()
  handleQuery()
}

/** 查看流程实例详情 */
const handleDetail = (row: ProcessInstanceVO) => {
  router.push({
    name: 'BpmProcessInstanceDetail',
    query: {
      id: row.id
    }
  })
}

/** 重新发起流程实例 */
const handleReCreate = async (row: ProcessInstanceVO) => {
  if (row?.id) {
    if (row.processDefinition!.formType === BpmModelFormTypeEnum.Custom) {
      // 如果业务表单流程也支持重新发起，需要读取流程定义最新版本的信息
      message.error('重新发起流程失败，原因：该流程使用业务表单，不支持重新发起')
      return
    }
  }
  // 跳转发起流程界面
  await router.push({
    name: 'BpmProcessInstanceCreate',
    query: { processInstanceId: row?.id },
    state: { reload: true } // 提示需要刷新(自定义的值，通过history.state)
  })
}

/** 取消流程实例 */
const handleCancel = async (row: ProcessInstanceVO) => {
  // 二次确认
  const { value } = await ElMessageBox.prompt('请输入取消原因', '取消流程', {
    confirmButtonText: t('common.ok'),
    cancelButtonText: t('common.cancel'),
    inputPattern: /^[\s\S]*.*\S[\s\S]*$/, // 判断非空，且非空格
    inputErrorMessage: '取消原因不能为空'
  })
  // 发起取消
  await ProcessInstanceApi.cancelProcessInstanceByStartUser(row.id, value)
  message.success('取消成功')
  // 刷新列表
  await getList()
}

const firstLoad = ref(true)
onActivated(() => {
  // keepalive组件才会启用，首次装载会在onMounted之后执行，后续从keepalive中被激活也会执行
  if (firstLoad.value) {
    // 确保不与onMounted重复执行逻辑
    firstLoad.value = false
    return
  }
  if (history.state?.reload) {
    getList()
  }
})

/** 初始化 **/
onMounted(async () => {
  await getList()
  categoryList.value = await CategoryApi.getCategorySimpleList(EnableStatusEnum.Enabled)
  processDefinitionList.value = await ProcessDefinitionApi.getProcessDefinitionSimpleList()
})
</script>

<style scoped lang="scss"></style>
